Means for dissolving and supplying boiler compounds to boilers.



W. E. NlcCOMB.

MEANS FOR DISSOLVING AND SUPPLYING BOILER COMPOUNDS T0 BOILERS.

APPLICATION FlLED NOV. 24,1914.

Patented Feb. 29, 1916.

Ybli'ailer w INVENTOR or lry'ector ATTO RN EY E 4 if WILLIAM E. MCCOMB, OF CAMERON, MISSOURI.

MEANS FOR DISSOLVING AN D SUPPLYING BOILER COMPOUNDS TO BOILERS.

Specification of Letters Patent.

Patented Feb. 29, 1916.

Application filed November 24, 1914. Serial No. 873,843.

To all whom it may concern:

Be it known that I, WILLIAM E. MoCoMB,

a citizen of the United States, residing at.

Cameron, in the county of Clinton and State of Missouri, have invented a new and useful Means for Dissolving and Supplying Boiler Compounds to Boilers, of which thefollowing is a specification.

This invention has reference to means for supplying boiler compoundsto boilers, and its object is to provide a means whereby feed water may be driven through a vessel containing the compound in a manner to cause the ready solution of the soluble parts of the compound and the direction of the compound so dissolved to the boiler.

In accordance with the present invention there is provided a cylinder into which the compound is introduced, and this cylinder is entered at one end by a pipe connected to the hot water pump or injector supplying water to the boiler. The cylinder has an outlet so arranged that water driven into the cylinder has no direct path to the outfrom a. consideration of the following delet, but must follow a more or less tortuous route, whereby compound placed in the cylinder is thoroughly agitated and the soluble parts thereof are readily dissolved. In the line of travel of the-solutionfrom the dissolving chamber the solution passes through a mixing flow and pressure cylinder, after which 'it is conducted to the boiler. The two cylinders are arranged in a by-pass connected to the main supply pipe, in which latter there is located a valve, while the bypass also contains valves whereby the flow of water is regulated as desired. The arrangement also is provided with washing inlets and outlets and requisite valves for controlling the course of the fluids employed. 1 i

The invention will be best understood tailed description, taken in connection with the accompanying drawing, forming a part of this specification, with the further, understanding that while the drawing shows a practicalform ofthe invention, the latter is not confined to any .strict conformity with the showing of the drawing, but may be changed and modified so long as such changes and modifications mark no material departure from the vsalient features of the invention.

In the drawing, the figure is a view partly in elevation and partly in section, showing an arrangement employed in accordance with the present invention.

In the drawing there is shown a pipe 1 which may be considered as connected at one end to the hot water pump or injector of the boiler, and at the other end to the boileritself. This pipe includes two T connections 2, 3, respectively, at suitably spaced points, and between these T connections is a cut-off valve 4 which may be of the usual globe type, or of any other desired type. Leading from the T 2 is another pipe 5 in-- cluding a cut-ofi valve 6 which may also be of the globe type, and a check valve 7 which may be of any suitable known form. The p1pe 5 terminates in an elbow 8 connected to one end of a T 9, while the other endof this T communicates through a cut-off valve 10 shown as of-the globe type, with a pipe 11 extending through one head 12 of a cylinder 13 and entering said cylinder for a distance which may be about two-thirds of the length of the cylinder, the latter being usually arranged in an upright position.

In describing the various pipes and their communications with the valves, it will be understood thatnipples or other fittings are used wherever needed, but no special reference is made to such commonly used parts or pipe fittings.

The cylinder 13 has the end remote from the end 12 closed by another head 14 protwoparts, and this pipe within the cylinder 7 terminates in a- T v18 carrying two branch pipes 19 on opposite sides of the pipe 11 and opening at a lower level than the top of the pipe 11. The pipe 17 includes a controlling valve 20 which may be a globe valve, and opens into a cylinder 21 through one head 22 thereof. The other head v23 of this cylinder is connectedby a pipe 24 to a T 25 to one end of which. is connected the corre sponding end of a pipe 26in turn connected at the other end to. theYT 3. The pipe 26 includes a valve 27, which like the other valves may be of the ordinary globe type.

' Branched off from the T 25 on the end of the latter remote from the pipe 26 is another pipe 28 including a controlling globe valve 29. i A

Branched oil" from the T 9 is a pipe 30 terminating in another T 31 from which there is branchedanother pipe 32 including a controlling valve 33. Also proceeding from the T 31 is a pipe 34 including a valve 35. and entering the cylinder 13 through the head 12. Inside of the Cylinder 13 the pipe 34 has an .elbow 36 connected thereto and immediately beyond this elbow the pipe terminates, the terminal portion of the pipe being substantially horizontal and quite close to the bottom head 12 of the cylinder 13. 1

A suitable compound or composition indicated at 37 is introduced into the cylinder 1 13 on the removal of the plug 16, which is afterward replaced. -This compoundmay consist of soda ash, caustic soda, and graphite, or any other material or materials employed in connection with boilers for'dissolving deposits and for other purposes.

Let itbe assumed that the valves 6 and 2,7 are closed andthe valve 4 is open. Under these circumstances water from the hot water pump or injector flows directly to the boiler. If it be desired to introduce the compound into the boiler, assuming that the materials of the compound are already within the cylinder 13, the valves 6,10, 20. and 27 are opened to such extent as may be desired, and the valve 4' is closed to such extent as may be needful. The valves 29,33 and 35 are assumed to be closed. Now hot water from the hot water pump or injector flows through the pipe 1 to the T 2, thence by way of the pipes 5 and 11 to the. cylinder 13, and issues from the upper end of the, pipe 11 into the cylinder 13. Water accumulates in the cylinder 13, acting on the compound gages the compound 37, and thoroughly agi tates' and dissolves, it, and also carries some of the material, such as the insoluble graphite, with it, into the pipes 19. The solution and such of the compound as'may be insoluble flows into the cylinder 21 into which may be carried any smallparticles of the compound agitated by the openingof the valve 35. .Such particles settle in the cylinder21 and hence do not reach the valve 27 as might occur if the cylinder 21 were not present. Should such particles reach the valve .27 they would be liable to clog it. Thence the water carrying the compound passes by way of the pipe 26 to the T 3 and ultimately reaches the boiler. If the valve 4 be wholly closed, then the entire flow of feed water passes through the pipe 6, cylinder 13, cylinder 21 and pipe 26 to the boiler. If the valve 4 be partly open and the valves in the branch pipes be properly regulated any degree of proportionate flow may L be established between the main pipe 1 and the branch or by-pass pipes. The air trapped compound isall dissolved. By opening the valve 35 there is provided a path for the feed Water through the pipe 34, and this water entering the cylinder 13 stirs up any compound 37 which may be therein. By closing the valve 10 and. openingthe valves 33 and- 35 with the pipe '32 suitably connected to a source of fluid under pressure, it is possible to blow or wash out the whole structure.

With a structure such as shown in the drawings in which the pipe 1 is a one inch pipe and the by-pass pipes 5 and 26 are three-eighth inch pipes, four pounds of soda ash placed in the cylinder'13 have been injected into the boiler in less than an hour. Again, by a suitable adjustment of thevarious valves, the injection of the compound may be prolonged for eighteen to twentyfour hours.

In the handling of graphite it is quite feasible to keep it agitated as by the pipe 34, so that there is no chance for the graphite to settle to the bottom of the cylinder 13.

While in the foregoing example certain sizes of pipes have been mentioned, it will be understood that the invention is not lim-, ited to any particular sizes of pipes, for

in these features it is possible to vary the proportions through relatively wide limits.

In a practical form of the invention a cylinder 13 as long as eighteen inches has been used with the cylinder 21 about ten inches in length, but here again the proportions given are not to be taken as limiting the inventi'on in its practicalformto any such particular proportions.

' The cylinder 21 is included in the line of piping between the cylinder 13 and the boiler .to catch and cause any particles of the compound reaching it to dissolve so as to prevent them from reaching and clogging the valve 27. Such carrying along of the compound is liable to occur when the compound in the cylinder 13 is agitated by opening the valve 35. j

- What is claimed is 1. A means for injecting compounds into branched around the valve in the main pipe and including an upright chamber or receptacle for the compound, with a part of the branch pipe entering the receptacle and o ening upwardly therein at a relatively high point, and that portion of the branch pipe leaving the receptacle opening downwardly therein at a lower point sufli'ciently' above the bottom of the receptacle to provide room for the compound below said'outlet pipe, and said branch pipe line being provided with valves for the regulation of the flow therethro'ugh.

4 2. A means for injecting compounds into boilers, comprising a pipe leading to the boiler and including a valve, a pipe branched ofl from the first-named pipe to one side of the valve, a chamber into which the branch pipe rises and in which it terminates, another pipe leading from the chamber from a lower level than the top of the first-named pipe, another chamber into which the second-named pipe leads, and a third pipe leading from the second chamber to the firstnamed pipe at the other side of the valve in the first-named pipe. Y

' 3. A means for injecting compounds into boilers, comprising a pipe leading to the boiler and including a valve, a pipe branched oflf from the first-named pipe on one side of the valve, a chamber into which the branch pipe leads and in which it terminates, another pipe leading from the chamber from a lower level than the discharge end of the first-named pipe, another chamber in which the second-namedpipe leads, and a third pipe leading from the second chamber to the first-named pipe at the other side of the valve in the first-named pipe, the branch pipes including valves for the control of flow therethrough.

4. A means for feeding compounds to boilers comprising a main feed pipe having a valve therein, a branch pipe leading therefrom and including spaced valves and a check valve between them, a cylinder into which the branch pipe discharges at a high point therein, means for permitting access to the cylinder for the introduction of boiler compound thereinto, a valved pipe leading from the second-named pipe between the valves therein and entering the bottom portion of the cylinder, another pipe leading from the cylinder'from a low point therein and containing a valve, another cylinder into which the'last-named pipe enters, and still another pipe leading from the secondnamed cylinder to the first-named pipe .on the other side of the valve therein and also containing a flow controlling valve. s

5. A means for feeding compounds to boilers comprising a main feed pipe having a valve therein, a branch pipe leading therefrom and including spaced valves and a cneck valve between them, a cylinder into which the branch pipe discharges at a high side of the valve in said last-named pipe remote from the first-named pipe.

6. A means for introducing boiler compound into boilers, comprising a valved pipe for the passage of feed water to the boiler, and a branch pipe connected at opposite ends to the first-named pipe around the valve therein, said branch pipe including a compound receptacle within which the continuity of the branch pipe is broken with the ends of the branch pipe within the receptacle at different levels, and valves for controlling the flow of water through the branch pipe and the receptacle included therein, said branch pipe having another pipe branched therefrom and opening into the receptacle at a low level therein and provided with a valve for the control of fluid there-through.

7. A means for introducing boiler compound into boilers, comprising a valved pipe for the passage of feed water to the boiler, and abranch pipe connected at opposite ends to the first-named pipe around the valve therein, said branch pipe including a compound receptacle within which the continuity of the branch pipe is broken with the ends of the branch pipe within the. receptacle at different levels, and valves for controlling the flow of water through the branch pipe and the receptacle included therein, said branch'pipe having another pipe branched therefrom and opening into the receptacle at a low level therein and.

provided with avalve for the control of fluid therethrough, and said last-named pipe having a valved pipe connected thereto for directing wash fluid into the receptacle.

8. A means for introducing boiler compound into boilers, comprising a valved pipe for the passage of feed water. to the boiler, and a branch pipe connected at opposite ends to the first-named pipe around the valve therein, said branch pipe including a compound receptacle within which the continuity of the branch pipe is broken with the ends of the branch pipe within the receptacle at different levels, and valves for controlling the flow of water through the branch pipe and the receptacle included therein, said branch pipe having another pipe branched therefrom and. opening into the receptacle at a low level therein and provided with a valve for the control of fluid therethrough, and said last-named pipe having a valved pipe connected thereto for directing wash fluid into the receptacle, "the pipe also including another receptaclein the portion of the branch pipe after leaving the first-named receptacle, and a valved outlet fromthe pipe after leaving the secondnamed receptacle.

9. In a means for introducing boiler compound into boilers, a compound receptacle,

a water pipe leading-thereinto and terminating at a high point in said receptacle, and a pipe leading therefrom and communicating with the interior of the'receptacle at a lower point than the inlet pipe, said receptacle also having means for the introduction of an agitating stream of water at a low point therein.

10. Ina means for dissolving and introducing boiler compound into boilers, a receptacle fo the compound having a water pipe leading thereinto and opening within the receptacle at a high point therein, an-- other pipe leading from and branched within the receptacle and communicating with said receptacle at a relatively low point x therein, said receptacle being also provided with another pipe entering it at a low point and having means of communication with both the inlet water pipe of the receptacle and with other fluid under pressure for either agitating the compound introduced into the receptacle or conveying wash or.

the outlet pipe for a mass of compound,

whereby water passing through the receptacle is constrained to follow an indirect path and engage the compound for dissolving the latter, and air is entrapped in the receptacle toform an elastic cushion for equalizing the outflow from the receptacle. In testimony, that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

WILLIAM E. MoCOMB.

Witnesses:

ALVORD J. ALTHoUsE, IRA D. CUTTER. 

